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/*
* Copyright (C) 1999 Lars Knoll <knoll@kde.org>
* Copyright (C) 1999 Antti Koivisto <koivisto@kde.org>
* Copyright (C) 2006 Allan Sandfeld Jensen <kde@carewolf.com>
* Copyright (C) 2006 Samuel Weinig <sam.weinig@gmail.com>
* Copyright (C) 2004, 2005, 2006, 2007, 2009, 2010 Apple Inc.
* All rights reserved.
* Copyright (C) 2010 Patrick Gansterer <paroga@paroga.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_LAYOUT_LAYOUT_IMAGE_RESOURCE_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_LAYOUT_LAYOUT_IMAGE_RESOURCE_H_
#include "base/macros.h"
#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/core/loader/resource/image_resource_content.h"
#include "third_party/blink/renderer/core/style/style_image.h"
namespace blink {
class LayoutObject;
class CORE_EXPORT LayoutImageResource
: public GarbageCollectedFinalized<LayoutImageResource> {
public:
LayoutImageResource();
virtual ~LayoutImageResource();
static LayoutImageResource* Create() {
return MakeGarbageCollected<LayoutImageResource>();
}
virtual void Initialize(LayoutObject*);
virtual void Shutdown();
void SetImageResource(ImageResourceContent*);
ImageResourceContent* CachedImage() const { return cached_image_.Get(); }
virtual bool HasImage() const { return cached_image_; }
void ResetAnimation();
bool MaybeAnimated() const;
virtual scoped_refptr<Image> GetImage(const LayoutSize&) const;
virtual bool ErrorOccurred() const {
return cached_image_ && cached_image_->ErrorOccurred();
}
// Replace the resource this object references with a reference to
// the "broken image".
void UseBrokenImage();
virtual bool ImageHasRelativeSize() const;
virtual FloatSize ImageSize(float multiplier) const;
// Default size is effective when this is LayoutImageResourceStyleImage.
virtual FloatSize ImageSizeWithDefaultSize(float multiplier,
const LayoutSize&) const;
virtual WrappedImagePtr ImagePtr() const { return cached_image_.Get(); }
virtual void Trace(blink::Visitor* visitor) { visitor->Trace(cached_image_); }
protected:
// Device scale factor for the associated LayoutObject.
float DeviceScaleFactor() const;
// Returns an image based on the passed device scale factor.
static Image* BrokenImage(float device_scale_factor);
LayoutObject* layout_object_;
Member<ImageResourceContent> cached_image_;
private:
DISALLOW_COPY_AND_ASSIGN(LayoutImageResource);
};
} // namespace blink
#endif // LayoutImage_h